Estimated Urban Soil Chemistry With Bioaccessible Arsenic And Lead

Estimated Urban Soil Chemistry data provides geometric mean concentrations of Arsenic, Cadmium, Chromium, Nickel, and Lead in urban topsoil. It uniquely includes estimated bioaccessible arsenic and lead concentrations derived via linear regression models. The dataset, created by the British Geological Survey, is intended to assist Local Planning Authorities in risk assessment.

Use Cases

• Map estimated geometric mean concentrations of Arsenic, Cadmium, Chromium, Nickel, and Lead to identify urban areas with elevated soil contamination.
• Analyze estimated bioaccessible Arsenic and Lead concentrations to model potential human exposure risks from soil.
• Compare estimated soil chemistry data with land use records to attribute high concentrations to geogenic or anthropogenic sources.
• Use spatially interpolated concentrations of Cadmium and Lead to support environmental planning and development risk assessments.

Strengths

• Includes a unique feature: estimated bioaccessible concentrations for Arsenic and Lead, derived using linear regression models.
• Covers five key potentially harmful elements (PHEs): Arsenic, Cadmium, Chromium, Nickel, and Lead.
• Data is spatially referenced, enabling geographic analysis and mapping for urban planning.

Limitations

• Dataset is based on and limited to the records in the possession of the British Geological Survey at creation time, which may not be exhaustive.
• Data is derived via spatial interpolation and regression modeling, introducing estimation uncertainty not present in direct measurements.
• Specific sample size, geographic extent, and temporal coverage are not provided in the input.

Provenance

Source

British Geological Survey (BGS)

Collection Method

Derived by spatial interpolation of Measured Urban Soil Chemistry data; estimated bioaccessible As and Pb from linear regression models.

Time Range

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Freshness

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Geography

Urban areas (specific locations not detailed).